Stepwise deprotonation of truxene: structures, metal complexation, and charge-dependent optical properties.

ABSTRACT: As a planar subunit of C₆₀-fullerene, truxene (C₂₇H₁₈) represents a highly symmetrical rigid hydrocarbon with strong blue emission. Herein, we used truxene as a model to investigate the chemical reactivity of a fullerene fragment with alkali metals. Monoanion, dianion, and trianion products with different alkali metal counterions were crystallized and fully characterized, revealing the core curvature dependence on charge and alkali metal coordination. Moreover, a ¹proton nuclear magnetic resonance study coupled with computational analysis demonstrated that deprotonation of the aliphatic CH₂ segments introduces aromaticity in the five-membered rings. Importantly, the UV-vis absorption and photoluminescence of truxenyl anions with differ

SUBMITTER: Guo Y 

PROVIDER: S-EPMC10664571 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature